A189232 - cp's OEIS frontend

A189232 Triangle read by rows: Number of crossing set partitions of {1,2,...,n} into k blocks.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	1
9	0
10	0
11	0
12	5
13	5
14	0
15	0
16	0
17	16
18	40
19	15
20	0
21	0
22	0
23	42
24	196
25	175
26	35
27	0
28	0
29	0
30	99
31	770
32	1211
33	560
34	70
35	0
36	0
37	0
38	219
39	2689
40	6594
41	5187
42	1470
43	126
44	0
45	0
46	0
47	466
48	8790
49	31585
50	37233
51	17535
52	3360
53	210
54	0
55	0

[0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 5, 5, 0, 0, 0, 16, 40, 15, 0, 0, 0, 42, 196, 175, 35, 0, 0, 0, 99, 770, 1211, 560, 70, 0, 0, 0, 219, 2689, 6594, 5187, 1470, 126, 0, 0, 0, 466, 8790, 31585, 37233, 17535, 3360, 210, 0, 0]

cp's OEIS Frontend

A189232 Triangle read by rows: Number of crossing set partitions of {1,2,...,n} into k blocks.

Table of values

List of values